Regulatory Genes for Plant Differentiation and Growth, and Use of the Same

• Main Authors: KITANO HIDEMI, NAKAJIMA MASATOSHI, YAMAGUCHI ISOMARO, MATSUOKA MAKOTO, ASHIKARI MOTOYUKI, UEGUCHI MIYAKO
• Format: Patent
• Language: English
• Published: 29.01.2009
• Subjects: AGRICULTURE; ANIMAL HUSBANDRY; BEER; BIOCHEMISTRY; CHEMISTRY; COMPOSITIONS OR TEST PAPERS THEREFOR; COMPOSITIONS THEREOF; CONDITION-RESPONSIVE CONTROL IN MICROBIOLOGICAL ORENZYMOLOGICAL PROCESSES; CULTURE MEDIA; ENZYMOLOGY; FISHING; FORESTRY; HUMAN NECESSITIES; HUNTING; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; MEASURING OR TESTING PROCESSES INVOLVING ENZYMES, NUCLEICACIDS OR MICROORGANISMS; METALLURGY; MICROBIOLOGY; MICROORGANISMS OR ENZYMES; MUTATION OR GENETIC ENGINEERING; NEW PLANTS OR PROCESSES FOR OBTAINING THEM; ORGANIC CHEMISTRY; PEPTIDES; PHYSICS; PLANT REPRODUCTION BY TISSUE CULTURE TECHNIQUES; PROCESSES OF PREPARING SUCH COMPOSITIONS; PROPAGATING, PRESERVING OR MAINTAINING MICROORGANISMS; SPIRITS; TESTING; TRAPPING; VINEGAR; WINE

An objective of the present invention is to provide gibberellin-binding proteins, genes encoding such proteins, and applications therefor. The proteins of the present invention function as cytoplasmic receptors for gibberellin and mediate gibberellin response in plants. Plants overexpressing such genes exhibited gibberellin-hypersensitive phenotypes, such as increased plant height. In contrast, plants in which the genes were mutated exhibited gibberellin-insensitive phenotypes, and thus became dwarfed. Accordingly, plant differentiation and growth can be regulated by introducing the gibberellin-binding genes of the present invention or by suppressing the expression of same.